Rant: It took me four hours to identify a simple leaf spot fungus
I was staring at my begonia for like three weeks trying to figure out why it kept getting these brown spots. Thought it was sunburn, then overwatering, then some kind of pest. Pulled out my phone, took a dozen photos, posted on three different plant ID groups. Turns out it was just Cercospora leaf spot. A basic fungus. Four hours of my life gone because I didnt check the underside of the leaves first. Has anyone else spent way too long diagnosing something that had a dead simple fix?